package com.shijie.newvideo.pagerslidingtabstrip;

import static android.R.attr.textColor;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Path;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.SparseBooleanArray;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.Checkable;
import android.widget.HorizontalScrollView;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.TextView;

import androidx.viewpager.widget.ViewPager;

import com.shijie.newvideo.R;

import java.util.List;
import java.util.Locale;

/**
 * 不用viewPager的指示器
 * 可滑动的标题指示器页面
 * 滑动指示器indicatorColor颜色
 * 在视图的底部的全宽度的线underlineColor颜色
 * 选项卡之间的分隔dividerColor颜色
 * 滑动指示器indicatorHeightHeight
 * 在视图的底部的全宽度的线underlineHeight高度
 * dividerPadding顶部和底部填充的分频器
 * tabPaddingLeftRight左、右填充每个选项卡
 * scrollOffset卷轴被选择的标签的偏移
 * tabBackground背景绘制的每个标签，应该是一个stateListDrawable
 * shouldExpand如果设置为TRUE，每个标签都给予同样的重量，默认为false
 * textAllCaps如果为真，所有选项卡标题都是大写，默认为true
 * 扩展4个属性 ， 分别是 默认的字体大小 和颜色 ，和选中后的 字体大小和颜色
 */
public class PagerSlidingTabStrip2 extends HorizontalScrollView {
    private int indicatorMgBottom = 0;

    // @formatter:off
    private static final int[] ATTRS = new int[]{
            android.R.attr.textSize,
            textColor
    };
    // @formatter:on
    private LinearLayout.LayoutParams defaultTabLayoutParams;
    private LinearLayout.LayoutParams expandedTabLayoutParams;
    public ViewPager.OnPageChangeListener delegatePageListener;
    private LinearLayout tabsContainer;
    private int tabCount;
    private int currentPosition = 0;
    private int selectedPosition = 0;
    private float currentPositionOffset = 0f;
    private Paint rectPaint;
    private Paint dividerPaint;
    private int indicatorColor = 0xFF666666;
    private int underlineColor = 0x1A000000;
    private int dividerColor = 0x1A000000;
    private int indicatorStyle = 0;
    private Path mPath = new Path();
    private boolean shouldExpand = false;
    private boolean textAllCaps = false;
    private int scrollOffset = 52;
    private int indicatorWidth = 0;
    private int indicatorHeight = 8;
    /** 指示器边角半径，指示器是矩形(indicatorStyle = 0)是有效 */
    private int indicatorCornerRadius = 4;
    private RectF indicatorRectF = new RectF();
    private int tabTextStyle = 0;
    private int underlineHeight = 2;
    private int dividerPadding = 12;
    private int tabPadding = 24;
    private int tabMarginLeftAndRight;
    private int dividerWidth = 1;
    private int tabTextSize = 14;
    private int selectedTabTextStyle = 0;
    private int tabTextColor = 0xFF666666;
    private SparseBooleanArray badgeItemPosition; // 要显示的未读标记的集合

    private int selectedTabTextSize = 16;

    public PagerSlidingTabStrip2(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        setFillViewport(true);
        setWillNotDraw(false);
        tabsContainer = new LinearLayout(context);
        tabsContainer.setOrientation(LinearLayout.HORIZONTAL);
        tabsContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
        addView(tabsContainer);
        DisplayMetrics dm = getResources().getDisplayMetrics();
        scrollOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, scrollOffset, dm);
        indicatorHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, indicatorHeight, dm);
        indicatorMgBottom = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, indicatorMgBottom, dm);
        underlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, underlineHeight, dm);
        dividerPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerPadding, dm);
        tabPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, tabPadding, dm);
        dividerWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerWidth, dm);
        tabTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, tabTextSize, dm);
//        selectedTabTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, selectedTabTextSize, dm);
        // get system attrs (android:textSize and android:textColor)
        TypedArray a = context.obtainStyledAttributes(attrs, ATTRS);
        // tabTextSize = a.getDimensionPixelSize(0, tabTextSize);
        //tabTextColor = a.getColor(1, tabTextColor);
        a.recycle();
        // get custom attrs
        a = context.obtainStyledAttributes(attrs, R.styleable.PagerSlidingTabStrip);
        indicatorColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsIndicatorColor, indicatorColor);

        //下面6个扩展的属性
        tabTextSize = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabTextSize, tabTextSize);
        tabTextStyle = a.getInt(R.styleable.PagerSlidingTabStrip_pstsTabTextStyle, tabTextStyle);
        tabTextColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsTabTextColor, tabTextColor);

        selectedTabTextSize = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsSelectedTabTextSize, selectedTabTextSize);
        selectedTabTextStyle = a.getInt(R.styleable.PagerSlidingTabStrip_pstsSelectedTabTextStyle, tabTextStyle);
        selectedTabTextColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsSelectedTabTextColor, indicatorColor);

        underlineColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsUnderlineColor, underlineColor);
        dividerColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsDividerColor, dividerColor);
        indicatorStyle = a.getInt(R.styleable.PagerSlidingTabStrip_pstsDividerStyle, indicatorStyle);
        indicatorWidth = a.getDimensionPixelOffset(R.styleable.PagerSlidingTabStrip_pstsIndicatorWidth, indicatorWidth);
        indicatorHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicatorHeight, indicatorHeight);
//        indicatorCornerRadius = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicatorCornerRadius, indicatorCornerRadius);
//        if (indicatorCornerRadius < 0) {
//            indicatorCornerRadius = 0;
//        }
        indicatorMgBottom = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicator_mg_bottom, indicatorMgBottom);
        underlineHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsUnderlineHeight, underlineHeight);
        dividerPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsDividerPadding, dividerPadding);
        tabMarginLeftAndRight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabMarginLeftRight, tabMarginLeftAndRight);
        tabPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabPaddingLeftRight, tabPadding);
        tabBackgroundResId = a.getResourceId(R.styleable.PagerSlidingTabStrip_pstsTabBackground, tabBackgroundResId);
        shouldExpand = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsShouldExpand, shouldExpand);
        scrollOffset = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsScrollOffset, scrollOffset);
        textAllCaps = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsTextAllCaps, textAllCaps);
        a.recycle();
        rectPaint = new Paint();
        rectPaint.setAntiAlias(true);
        rectPaint.setStyle(Style.FILL);
        dividerPaint = new Paint();
        dividerPaint.setAntiAlias(true);
        dividerPaint.setStrokeWidth(dividerWidth);
        defaultTabLayoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT);
        defaultTabLayoutParams.leftMargin = defaultTabLayoutParams.rightMargin = tabMarginLeftAndRight;
        expandedTabLayoutParams = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f);
        expandedTabLayoutParams.leftMargin = expandedTabLayoutParams.rightMargin = tabMarginLeftAndRight;
        if (locale == null) {
            locale = getResources().getConfiguration().locale;
        }

        badgeItemPosition = new SparseBooleanArray();
    }

    private int selectedTabTextColor = 0xFF666666;
    private Typeface tabTypeface = null;
    private int tabTypefaceStyle = Typeface.NORMAL;
    private int lastScrollX = 0;
    private int tabBackgroundResId = R.drawable.background_tab;
    private Locale locale;
    private Listener mListener;

    public PagerSlidingTabStrip2(Context context) {
        this(context, null);
    }

    public PagerSlidingTabStrip2(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    private void updateTabTextView(TextView tab, boolean selected) {
        tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, tabTextSize);
        tab.setTypeface(tabTypeface, tabTypefaceStyle);
        tab.setTextColor(tabTextColor);
        // setAllCaps() is only available from API 14, so the upper case is made manually if we are on a
        // pre-ICS-build
        if (textAllCaps) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
                tab.setAllCaps(true);
            } else {
                tab.setText(tab.getText().toString().toUpperCase(locale));
            }
        }

        if (selected) {
            tab.setTextColor(selectedTabTextColor);
            tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, selectedTabTextSize);
            tab.setTypeface(getTextStyle(selectedTabTextStyle));
        } else {
            tab.setTypeface(getTextStyle(tabTextStyle));
        }
        if (tab instanceof Checkable) {
            ((Checkable) tab).setChecked(selected);
        }
    }



    private List<String> tabs;
    public void setTabsContent(List<String> tabs) {
       this.tabs = tabs;
        if (tabs == null) {
            throw new IllegalStateException("tabs不能为空");
        }
//        pager.setOnPageChangeListener(pageListener);
        notifyDataSetChanged();
    }

    public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
        this.delegatePageListener = listener;
    }



    public void notifyDataSetChanged() {
        tabsContainer.removeAllViews();
        tabCount = tabs.size();
        for (int i = 0; i < tabCount; i++) {
            addTextTab(i, tabs.get(i));
        }
        updateTabStyles();
        getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                getViewTreeObserver().removeGlobalOnLayoutListener(this);
//                currentPosition = pager.getCurrentItem();
                scrollToChild(currentPosition, 0);
            }
        });
    }

    public void setUnreadBadgeItem(int position) {
        if (position >= tabCount) {
            return;
        }
        badgeItemPosition.put(position, true);
        updateTabStyles();
    }

    public void setAllUnreadBadge() {
        for (int i = 0; i < tabCount; i++) {
            badgeItemPosition.put(i, true);
        }
        updateTabStyles();
    }

    public void setDefaultTabLayoutParams(LinearLayout.LayoutParams defaultTabLayoutParams) {
        this.defaultTabLayoutParams = defaultTabLayoutParams;
    }

    private void updateUnReadBadge(int position) {
        if (badgeItemPosition != null && badgeItemPosition.indexOfKey(position) >= 0) {
            badgeItemPosition.put(position, false);
        }
    }

    private void addTextTab(final int position, String title) {
        TextView tab = null;
        if (mListener != null) {
            tab = mListener.createTextTab(getContext());
        }
        if (tab == null) {
            tab = new TextView(getContext());
        }
        tab.setText(title);
        tab.setGravity(Gravity.CENTER);
        tab.setSingleLine();
        addTab(position, tab);
        BadgeView badgeView = new BadgeView(getContext());
        badgeView.bindView(tab);
    }

    private void addIconTab(final int position, int resId) {
        ImageButton tab = new ImageButton(getContext());
        tab.setImageResource(resId);
        addTab(position, tab);
        BadgeView badgeView = new BadgeView(getContext());
        badgeView.bindView(tab);
    }

    private void addTab(final int position, View tab) {
        tab.setFocusable(true);
        tab.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if(mListener != null){
                    mListener.onClickTabListener(position);
                    currentPosition = position;
                    selectedPosition = position;
                    updateUnReadBadge(position);
                    scrollToChild(position, 0);
                    updateTabStyles();
                }
            }
        });
        tab.setPadding(tabPadding, 0, tabPadding, 0);
        tabsContainer.addView(tab, position, shouldExpand ? expandedTabLayoutParams : defaultTabLayoutParams);
    }



    public void updateTabStyles() {
        for (int i = 0; i < tabCount; i++) {
            View v = tabsContainer.getChildAt(i);
            v.setBackgroundResource(tabBackgroundResId);
            if (v instanceof TextView) {
                updateTabTextView((TextView) v, i == selectedPosition);
            } else if (v instanceof ViewGroup) {
                View view1 = ((ViewGroup) v).getChildAt(0);
                if (view1 instanceof TextView) {
                    TextView tv = (TextView) view1;
                    updateTabTextView(tv, i == selectedPosition);
                }
            }
            if (badgeItemPosition != null && badgeItemPosition.size() > 0) {
                if (badgeItemPosition.indexOfKey(i) >= 0) {
                    updateBadgeItem(v, badgeItemPosition.get(i));
                }
            }
        }
        if(selectedPosition == tabCount-1){
            fullScroll(HorizontalScrollView.FOCUS_RIGHT);
        } else if(selectedPosition == 0){
            fullScroll(HorizontalScrollView.FOCUS_LEFT);

        }
    }

    private void updateBadgeItem(View view, boolean isShow) {
        if (view instanceof ViewGroup) {
            View childView = ((ViewGroup) view).getChildAt(1);
            if (childView instanceof BadgeView) {
                BadgeView badgeView = (BadgeView) childView;
                if (isShow) {
                    badgeView.showBadgePoint(7).setBadgeOffset(1, 6, true).show();
                } else {
                    badgeView.hide();
                }
            }
        }
    }

    public void reSetIndicatorPosition(int position){
        currentPosition = position ;
        selectedPosition = position ;
        invalidate();
        updateTabStyles();
    }


    public void showBadgeImage(int position, int drawableRes) {
        if (position >= tabCount) {
            return;
        }
        View view = tabsContainer.getChildAt(position);
        if (view instanceof ViewGroup) {
            View childView = ((ViewGroup) view).getChildAt(1);
            if (childView instanceof BadgeView) {
                BadgeView badgeView = (BadgeView) childView;
                badgeView.showImageRes(drawableRes).setBadgeOffset(1, 14, true).show();
            }
        }
    }

    private Typeface getTextStyle(int style) {
        if (style == 1) {
            return Typeface.defaultFromStyle(Typeface.BOLD);
        } else if (style == 2) {
            return Typeface.defaultFromStyle(Typeface.ITALIC);
        }
        return Typeface.defaultFromStyle(Typeface.NORMAL);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        if (isInEditMode() || tabCount == 0) {
            return;
        }
        final int height = getHeight();

        // draw underline
        rectPaint.setColor(underlineColor);
        canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);
        // draw indicator line
        rectPaint.setColor(indicatorColor);
        // default: line below current tab
        View currentTab = tabsContainer.getChildAt(currentPosition);
        float lineLeft = currentTab.getLeft();
        float lineRight = currentTab.getRight();
        // if there is an offset, start interpolating left and right coordinates between current and next tab
        if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {
            View nextTab = tabsContainer.getChildAt(currentPosition + 1);
            final float nextTabLeft = nextTab.getLeft();
            final float nextTabRight = nextTab.getRight();
            lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
            lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
        }
        if (indicatorWidth <= 0) {
            if (indicatorStyle == 1) {
                float l = lineLeft + (shouldExpand ? 30 : 15);
                float t = height - indicatorHeight - indicatorMgBottom;
                float r = lineRight - (shouldExpand ? 30 : 15);
                float b = height - indicatorMgBottom;
                //画矩形
                canvas.drawRect(l, t, r, b, rectPaint);

                mPath.reset();
                mPath.moveTo(l, t);
                mPath.lineTo(l - indicatorHeight, b);
                mPath.lineTo(l, b);
                mPath.close();
                //画左三角形
                canvas.drawPath(mPath, rectPaint);

                mPath.reset();
                mPath.moveTo(r, t);
                mPath.lineTo(r + indicatorHeight, t);
                mPath.lineTo(r, b);
                mPath.close();
                //画右三角形
                canvas.drawPath(mPath, rectPaint);
            } else {
                canvas.drawRect(lineLeft + 30, height - indicatorHeight - indicatorMgBottom, lineRight - 30, height - indicatorMgBottom, rectPaint);
            }
        } else {
            //指定了宽度
            float space;
            float contentWidth = lineRight - lineLeft - 60;
            if (indicatorWidth >= contentWidth) {
                //较宽
                space = 0;
            } else {
                space = contentWidth / 2 - indicatorWidth / 2;
            }
            indicatorRectF.left = lineLeft + space + 30;
            indicatorRectF.top = height - indicatorHeight - indicatorMgBottom;
            indicatorRectF.right = lineRight - space - 30;
            indicatorRectF.bottom = height - indicatorMgBottom;
            canvas.drawRoundRect(indicatorRectF, indicatorCornerRadius, indicatorCornerRadius, rectPaint);
        }
        // draw divider
        dividerPaint.setColor(dividerColor);
        for (int i = 0; i < tabCount - 1; i++) {
            View tab = tabsContainer.getChildAt(i);
            canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
        }
    }

    private void scrollToChild(int position, int offset) {
        if (tabCount == 0) {
            return;
        }
        int newScrollX = tabsContainer.getChildAt(position).getLeft() + offset;
        if (position > 0 || offset > 0) {
            newScrollX -= scrollOffset;
        }
        if (newScrollX != lastScrollX) {
            lastScrollX = newScrollX;
            scrollTo(newScrollX, 0);
        }
    }

    public interface IconTabProvider {
        int getPageIconResId(int position);
    }


    public void setIndicatorColor(int indicatorColor) {
        this.indicatorColor = indicatorColor;
        invalidate();
    }

    public void setIndicatorColorResource(int resId) {
        this.indicatorColor = getResources().getColor(resId);
        invalidate();
    }

    public int getIndicatorColor() {
        return this.indicatorColor;
    }

    public void setIndicatorHeight(int indicatorLineHeightPx) {
        this.indicatorHeight = indicatorLineHeightPx;
        invalidate();
    }

    public int getIndicatorHeight() {
        return indicatorHeight;
    }

    public void setUnderlineColor(int underlineColor) {
        this.underlineColor = underlineColor;
        invalidate();
    }

    public void setUnderlineColorResource(int resId) {
        this.underlineColor = getResources().getColor(resId);
        invalidate();
    }

    public int getUnderlineColor() {
        return underlineColor;
    }

    public void setDividerColor(int dividerColor) {
        this.dividerColor = dividerColor;
        invalidate();
    }

    public void setDividerColorResource(int resId) {
        this.dividerColor = getResources().getColor(resId);
        invalidate();
    }

    public int getDividerColor() {
        return dividerColor;
    }

    public void setUnderlineHeight(int underlineHeightPx) {
        this.underlineHeight = underlineHeightPx;
        invalidate();
    }

    public int getUnderlineHeight() {
        return underlineHeight;
    }

    public void setDividerPadding(int dividerPaddingPx) {
        this.dividerPadding = dividerPaddingPx;
        invalidate();
    }

    public int getDividerPadding() {
        return dividerPadding;
    }

    public void setScrollOffset(int scrollOffsetPx) {
        this.scrollOffset = scrollOffsetPx;
        invalidate();
    }

    public int getScrollOffset() {
        return scrollOffset;
    }

    public void setShouldExpand(boolean shouldExpand) {
        if (this.shouldExpand != shouldExpand) {
            this.shouldExpand = shouldExpand;
            notifyDataSetChanged();
        }
    }

    public boolean getShouldExpand() {
        return shouldExpand;
    }

    public boolean isTextAllCaps() {
        return textAllCaps;
    }

    public void setAllCaps(boolean textAllCaps) {
        this.textAllCaps = textAllCaps;
    }

    public void setTextSize(int textSizePx) {
        this.tabTextSize = textSizePx;
        updateTabStyles();
    }

    public int getTextSize() {
        return tabTextSize;
    }

    public void setTextColor(int textColor) {
        this.tabTextColor = textColor;
        updateTabStyles();
    }

    public void setTextColorResource(int resId) {
        this.tabTextColor = getResources().getColor(resId);
        updateTabStyles();
    }

    public int getTextColor() {
        return tabTextColor;
    }

    public void setSelectedTextColor(int textColor) {
        this.selectedTabTextColor = textColor;
        updateTabStyles();
    }

    public void setSelectedTextSize(int textSize) {
        this.selectedTabTextSize = textSize;
        updateTabStyles();
    }

    public void setSelectedTextColorResource(int resId) {
        this.selectedTabTextColor = getResources().getColor(resId);
        updateTabStyles();
    }

    public int getSelectedTextColor() {
        return selectedTabTextColor;
    }

    public void setTypeface(Typeface typeface, int style) {
        this.tabTypeface = typeface;
        this.tabTypefaceStyle = style;
        updateTabStyles();
    }

    public void setTabBackground(int resId) {
        this.tabBackgroundResId = resId;
        updateTabStyles();
    }

    public int getTabBackground() {
        return tabBackgroundResId;
    }

    public void setTabPaddingLeftRight(int paddingPx) {
        this.tabPadding = paddingPx;
        updateTabStyles();
    }

    public int getTabPaddingLeftRight() {
        return tabPadding;
    }

    public void setSelectedPosition(int selectedPosition) {
        this.selectedPosition = selectedPosition;
        updateTabStyles();
    }

    @Override
    public void onRestoreInstanceState(Parcelable state) {
        SavedState savedState = (SavedState) state;
        super.onRestoreInstanceState(savedState.getSuperState());
        currentPosition = savedState.currentPosition;
        requestLayout();
    }

    @Override
    public Parcelable onSaveInstanceState() {
        Parcelable superState = super.onSaveInstanceState();
        SavedState savedState = new SavedState(superState);
        savedState.currentPosition = currentPosition;
        return savedState;
    }

    static class SavedState extends BaseSavedState {
        int currentPosition;

        public SavedState(Parcelable superState) {
            super(superState);
        }

        private SavedState(Parcel in) {
            super(in);
            currentPosition = in.readInt();
        }

        @Override
        public void writeToParcel(Parcel dest, int flags) {
            super.writeToParcel(dest, flags);
            dest.writeInt(currentPosition);
        }

        public static final Creator<SavedState> CREATOR = new Creator<SavedState>() {
            @Override
            public SavedState createFromParcel(Parcel in) {
                return new SavedState(in);
            }

            @Override
            public SavedState[] newArray(int size) {
                return new SavedState[size];
            }
        };
    }

    public void setListener(Listener listener) {
        mListener = listener;
    }



    public interface Listener {

        /**
         * 创建每个按钮
         */
        TextView createTextTab(Context context);

        /**
         * 点击tab时的回调
         * @param currentPosition
         */
        void onClickTabListener(int currentPosition);


    }
}
